US20100067008A1 - Method and apparatus for evaluating samples - Google Patents
Method and apparatus for evaluating samples Download PDFInfo
- Publication number
- US20100067008A1 US20100067008A1 US12/513,293 US51329309A US2010067008A1 US 20100067008 A1 US20100067008 A1 US 20100067008A1 US 51329309 A US51329309 A US 51329309A US 2010067008 A1 US2010067008 A1 US 2010067008A1
- Authority
- US
- United States
- Prior art keywords
- filters
- samples
- scanning
- fluorescence
- scanner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/251—Colorimeters; Construction thereof
- G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
- G01N21/5907—Densitometers
- G01N21/5911—Densitometers of the scanning type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6452—Individual samples arranged in a regular 2D-array, e.g. multiwell plates
Definitions
- the invention relates to a method of detecting and storing information on optical properties of analytical samples by means of a digital scanning device and to an accessory device to a flat bed scanner for performing this method.
- sample cuvettes preferably in the form of micro titer plates are simply placed on the scanner bed.
- the invention is directed to performing the steps of putting filters on each side, i.e. in the direction of light in front of and behind the analytical samples and scanning the arrangement of samples between filters. Further the invention is directed to a device for supplementing a digital scanner by means for putting filters on each side of the analytical samples.
- the filters are polarization filters and the property detected and stored by scanning is the optical activity of the sample.
- FIG. 1 a schematic perspective view of an accessory device to a flat bed scanner
- FIG. 2 a schematic cross-sectional view of the device shown in FIG. 1
- FIG. 3 a top view of the device shown in FIG. 1
- FIG. 4 a detail showing the function of a prism
- FIG. 5 an alternative version of an accessory device
- FIG. 6 sample identification by bar code
- FIG. 7 an embodiment for analyzing larger objects
- FIG. 8 another possibility of analyzing a larger object
- FIG. 9 simultaneous analyzing a multitude of larger objects
- FIG. 10 analysis of an array of larger containers
- FIG. 11 an alternative possibility of analysing an array of larger containers
- FIG. 12 a detail of individual filters
- a micro titer plate 1 containing a plurality of sample wells 2 is put into an encasing 3 made of fully transparent material, such as acrylic glass etc.
- the encasing consists of a frame 4 with an opening 5 in which the micro titer plate is placed.
- Frame 4 has a first slot 6 arranged in a plane above the upper extension of an inserted micro titer plate and a second slot 7 arranged in a plane below the lower surface of the micro titer plate.
- the two slots are for the purpose of receiving filters 8 in the shape of thin sheets or the like.
- the filters 8 are polarisation filters or polarizers.
- the polarizers For the determination presence or absence of optical activity in the individual samples of the array the polarizers have to be arranged in different relative positions, i.e. parallel, crossed or intermediate. In FIG. 1 the polarizers are shown to be crossed. But they could also be inserted with parallel polarization directions or under any desired angle.
- a positioning pin 9 may be arranged aside the micro titer plate in order to ensure defined positions of the wells.
- a prism 10 made of transparent material such as acrylic glass is positioned along one short side of the micro titer plate to direct the light from the side through the samples for e.g. effecting fluorescence of the samples.
- Several prisms may be arranged along other or all sides of the micro titer plate.
- the prism is also used to read a bar code located at the side face of the micro titer plate for its identification. The bar code is processed automatically during image analysis.
- fluorescence radiation may be measured between crossed polarizers or through appropriate fluorescence and/or colour filters. To that effect one or both polarizers are replaced or supplemented by other types of filters.
- markers 11 in the form of a sticker or a scratch are provided on the filters for the purpose of defining their position for image analysis.
- the encasing 12 of another embodiment of the invention has recessed upper and lower surfaces instead of the slots to receive the filters.
- the encasing together with the filters and the enclosed micro titer plate is put onto the bed of the scanner. Precise positioning of the encasing on the scanner is effected by means known as such, e.g. by hook and loop patches etc. Alternatively, the encasing may be fixedly attached to a scanner which is used exclusively for this analytical purpose.
- the filter is supplemented or replaced by an electrical heating layer of the electric blanket type.
- the power source for this heating appliance may be placed outside the scanner. Temperature may be controlled by means of a temperature sensor or thermostat.
- identification or auxiliary sheets or covers may be put on top of the micro titer plate to enable or facilitate the identification or allowing additional quantification and analysis.
- These sheets or covers may contain well numbers, crosses, black circles or dots, grids or entirely black background. These help to quantify and analyze a variety of characteristics, such as surface tension, turbidity or the presence of air bubbles. In general these covers help to increase the contrast.
- the device allows the scanning of a variety of consumables, such as microscopy slides, pathology slides, terasaki plates, any well plates or petri dishes.
- consumables such as microscopy slides, pathology slides, terasaki plates, any well plates or petri dishes.
- certain consumables may require a suitable adapter.
- the device is robotic arm compatible for automatic insertion and removal of plates with standard robotic arms. There is space on all sides for access which is advantageous for easy manual access as well.
- FIGS. 7-12 larger objects such as vial or bottles may also be scanned in the same way.
- the encasing has of course modified dimensions.
- a bottle 13 is placed on the scanner bed 14 .
- the scanner is of the type which uses top illumination from its lid 15 .
- the bottle is positioned between filters 16 and prisms 17 for being scanned from different sides.
- the filter behind the bottle may be supplemented or replaced by a magnifying glass.
- the filters may be polarizers, fluorescence filters etc. Instead of the prisms mirrors may be used as well.
- the scanned lateral and bottom images 19 of the bottle are schematically shown under the scanner bed.
- FIG. 8 a similar analysis of a bottle may be effected with a filter 16 and a prism or mirror 17 on only one side.
- FIG. 9 shows a similar arrangement with a multitude of different objects such as bottles 20 of different size and a fluorescence cuvette 21 scanned simultaneously.
- FIG. 10 shows the scanning of an array of identical vials 22 between prisms or mirrors 23 for e.g. floating particles etc.
- filters 24 such as polarizers or fluorescence filters etc.
- individually rotatable polarizers or fluorescence filters may be associated with each vial.
- Subsequent image analysis may include characterization of size, morphology of structures, identification of colour and quantification of intensities, as well as cell analysis.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
For detecting and storing information on optical properties analytical samples are digitally scanned with filters put in front of and behind the samples. A device for performing this method has means for putting filters on each side of the analytical samples. The filters may be polarizers, fluorescence filters etc.
Description
- The invention relates to a method of detecting and storing information on optical properties of analytical samples by means of a digital scanning device and to an accessory device to a flat bed scanner for performing this method.
- Evaluation of analytical samples by means of a flat bed scanner or other electro-optical device is known. In WO 89/07255 extracting of information on chemical or biological assays or procedures, in particular the analysis of blood samples etc. by means of a flat bed scanner is disclosed. In US 2002/0168784 a diagnostic system using a flat bed scanner, especially determining and storing the result of agglutination assays is disclosed. The optical properties which are detected are fluorescence, colour, light scattering or characteristics of samples and resulting agglutinates.
- For all these known methods the sample cuvettes, preferably in the form of micro titer plates are simply placed on the scanner bed.
- It has now been found that other kinds of assays may be performed by using an accessory device in addition to the flat bed scanner.
- Accordingly the invention is directed to performing the steps of putting filters on each side, i.e. in the direction of light in front of and behind the analytical samples and scanning the arrangement of samples between filters. Further the invention is directed to a device for supplementing a digital scanner by means for putting filters on each side of the analytical samples. According to a more specific embodiment of the invention the filters are polarization filters and the property detected and stored by scanning is the optical activity of the sample.
- In the following a preferred embodiment of the invention is described by reference to the accompanying drawings. It is shown in
-
FIG. 1 a schematic perspective view of an accessory device to a flat bed scanner -
FIG. 2 a schematic cross-sectional view of the device shown inFIG. 1 -
FIG. 3 a top view of the device shown inFIG. 1 -
FIG. 4 a detail showing the function of a prism -
FIG. 5 an alternative version of an accessory device -
FIG. 6 sample identification by bar code -
FIG. 7 an embodiment for analyzing larger objects -
FIG. 8 another possibility of analyzing a larger object -
FIG. 9 simultaneous analyzing a multitude of larger objects -
FIG. 10 analysis of an array of larger containers -
FIG. 11 an alternative possibility of analysing an array of larger containers -
FIG. 12 a detail of individual filters - As shown in
FIG. 1-3 amicro titer plate 1 containing a plurality ofsample wells 2 is put into anencasing 3 made of fully transparent material, such as acrylic glass etc. The encasing consists of a frame 4 with anopening 5 in which the micro titer plate is placed. - Frame 4 has a
first slot 6 arranged in a plane above the upper extension of an inserted micro titer plate and asecond slot 7 arranged in a plane below the lower surface of the micro titer plate. The two slots are for the purpose of receivingfilters 8 in the shape of thin sheets or the like. - In the present embodiment the
filters 8 are polarisation filters or polarizers. For the determination presence or absence of optical activity in the individual samples of the array the polarizers have to be arranged in different relative positions, i.e. parallel, crossed or intermediate. InFIG. 1 the polarizers are shown to be crossed. But they could also be inserted with parallel polarization directions or under any desired angle. - As shown in the cross section of
FIG. 2 apositioning pin 9 may be arranged aside the micro titer plate in order to ensure defined positions of the wells. - As can also be seen in
FIG. 2 and in more detail inFIG. 4 , aprism 10 made of transparent material such as acrylic glass is positioned along one short side of the micro titer plate to direct the light from the side through the samples for e.g. effecting fluorescence of the samples. Several prisms may be arranged along other or all sides of the micro titer plate. As shown inFIG. 6 the prism is also used to read a bar code located at the side face of the micro titer plate for its identification. The bar code is processed automatically during image analysis. - As is well-known in the art fluorescence radiation may be measured between crossed polarizers or through appropriate fluorescence and/or colour filters. To that effect one or both polarizers are replaced or supplemented by other types of filters.
- As shown in the top view of
FIG. 3 markers 11 in the form of a sticker or a scratch are provided on the filters for the purpose of defining their position for image analysis. - As shown in
FIG. 5 , the encasing 12 of another embodiment of the invention has recessed upper and lower surfaces instead of the slots to receive the filters. - For performing the scanning of the samples the encasing together with the filters and the enclosed micro titer plate is put onto the bed of the scanner. Precise positioning of the encasing on the scanner is effected by means known as such, e.g. by hook and loop patches etc. Alternatively, the encasing may be fixedly attached to a scanner which is used exclusively for this analytical purpose.
- For samples which need to be heated the filter is supplemented or replaced by an electrical heating layer of the electric blanket type. The power source for this heating appliance may be placed outside the scanner. Temperature may be controlled by means of a temperature sensor or thermostat.
- In addition to filters or heating plates, identification or auxiliary sheets or covers may be put on top of the micro titer plate to enable or facilitate the identification or allowing additional quantification and analysis. These sheets or covers may contain well numbers, crosses, black circles or dots, grids or entirely black background. These help to quantify and analyze a variety of characteristics, such as surface tension, turbidity or the presence of air bubbles. In general these covers help to increase the contrast.
- The device allows the scanning of a variety of consumables, such as microscopy slides, pathology slides, terasaki plates, any well plates or petri dishes. Of course, certain consumables may require a suitable adapter. There is also no need for only one plate or consumable per scan. Depending on its size several consumables can be analyzed simultaneously. It is also possible to provide a larger scanner such as A3 for accommodating several SBS size micro plates.
- The device is robotic arm compatible for automatic insertion and removal of plates with standard robotic arms. There is space on all sides for access which is advantageous for easy manual access as well.
- According to an alternative embodiment of the invention shown in
FIGS. 7-12 larger objects such as vial or bottles may also be scanned in the same way. The encasing has of course modified dimensions. As shown inFIG. 7 abottle 13 is placed on thescanner bed 14. The scanner is of the type which uses top illumination from itslid 15. The bottle is positioned betweenfilters 16 andprisms 17 for being scanned from different sides. The filter behind the bottle may be supplemented or replaced by a magnifying glass. The filters may be polarizers, fluorescence filters etc. Instead of the prisms mirrors may be used as well. - The scanned lateral and
bottom images 19 of the bottle are schematically shown under the scanner bed. - This may be useful in the analysis of
particles 18 floating in turbid solutions including their behaviour over time such as the sedimentation kinetics. If a square of prisms or mirrors is used the bottle may be scanned from all four sides. - As shown in
FIG. 8 a similar analysis of a bottle may be effected with afilter 16 and a prism ormirror 17 on only one side.FIG. 9 shows a similar arrangement with a multitude of different objects such asbottles 20 of different size and afluorescence cuvette 21 scanned simultaneously.FIG. 10 shows the scanning of an array ofidentical vials 22 between prisms or mirrors 23 for e.g. floating particles etc. As shown inFIG. 11 the same arrangement may be used withfilters 24 such as polarizers or fluorescence filters etc. According to a further embodiment shown inFIG. 12 individually rotatable polarizers or fluorescence filters may be associated with each vial. - Subsequent image analysis may include characterization of size, morphology of structures, identification of colour and quantification of intensities, as well as cell analysis.
Claims (10)
1. Method of detecting and storing information on optical properties of analytical samples by means of a digital scanning device comprising putting filters on each side, i.e. in the direction of light in front of and behind the analytical samples and scanning the arrangement of samples between filters.
2. Method according to claim 1 , wherein the property detected and stored by scanning is polarization images of the sample.
3. Method according to claim 1 , wherein the property detected and stored by scanning is the fluorescence of the sample.
4. A device for detecting and storing information on optical properties of analytical samples by means of a digital scanning device comprising means for putting filters on each side of the analytical samples.
5. A device according to claim 4 wherein the filters are polarization filters.
6. A device according to claim 4 wherein the filters are fluorescence filters.
7. A device according to claim 4 wherein the samples are contained in wells of micro titer plates.
8. A device according to claim 4 wherein the samples are contained in bottles or vials.
9. A device according to claim 4 wherein prisms or mirrors are arranged at one or more sides of the sample.
10. A device according to claim 4 wherein at least one of the filters is supplemented or replaced by a magnifying glass.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2006/010561 WO2008052587A1 (en) | 2006-11-03 | 2006-11-03 | Method and apparatus for evaluating samples |
Publications (1)
Publication Number | Publication Date |
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US20100067008A1 true US20100067008A1 (en) | 2010-03-18 |
Family
ID=38180511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/513,293 Abandoned US20100067008A1 (en) | 2006-11-03 | 2006-11-03 | Method and apparatus for evaluating samples |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100067008A1 (en) |
EP (1) | EP2080010A1 (en) |
JP (1) | JP5265558B2 (en) |
CN (1) | CN101535796B (en) |
WO (1) | WO2008052587A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2316283A1 (en) * | 2009-10-30 | 2011-05-04 | Nestec S.A. | Container comprising non-alcoholic compositions with visible active ingedrients |
US9803192B2 (en) | 2013-10-04 | 2017-10-31 | Cornell University | Programmable and reconfigurable microcolumn affinity chromatography device, system, and methods of use thereof |
JP6600018B2 (en) * | 2018-01-09 | 2019-10-30 | 株式会社東芝 | Optical sensor, analysis apparatus, and analysis method |
CN110132853B (en) * | 2019-04-11 | 2020-06-26 | 中国科学技术大学 | Optical rotation dispersion measurement system and method based on pixel polarization camera |
US20230296521A1 (en) | 2022-03-17 | 2023-09-21 | Visera Technologies Company Limited | Bio-detection device, bio-detection system, and bio-detection method |
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US3969079A (en) * | 1975-01-08 | 1976-07-13 | Alphamedics Mfg. Corporation | Dual channel photo-optical clot detection apparatus |
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US4563331A (en) * | 1983-11-21 | 1986-01-07 | The United States Of America As Represented By The Secretary Of The Navy | System for measuring bioluminescence flash kinetics |
US5543018A (en) * | 1995-02-13 | 1996-08-06 | Visible Genetics Inc. | Method and apparatus for automated electrophoresis using light polarization detector |
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JP4269079B2 (en) * | 2004-11-01 | 2009-05-27 | 株式会社エイムテクノロジー | Non-invasive measuring device for trace component concentration in scattering medium |
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- 2006-11-03 JP JP2009534989A patent/JP5265558B2/en not_active Expired - Fee Related
- 2006-11-03 WO PCT/EP2006/010561 patent/WO2008052587A1/en active Application Filing
- 2006-11-03 EP EP06828918A patent/EP2080010A1/en not_active Withdrawn
- 2006-11-03 CN CN2006800562498A patent/CN101535796B/en not_active Expired - Fee Related
- 2006-11-03 US US12/513,293 patent/US20100067008A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
JP5265558B2 (en) | 2013-08-14 |
CN101535796B (en) | 2013-05-01 |
JP2010508525A (en) | 2010-03-18 |
CN101535796A (en) | 2009-09-16 |
WO2008052587A1 (en) | 2008-05-08 |
EP2080010A1 (en) | 2009-07-22 |
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